I used my AIU to control the sidings. Since the AIU cannot handle the current needed to power track I installed relays to switch on track power to the sidings. I then installed watchdog signal generators for all the track. When the siding is turned on the engines sees the signal and will start up when commanded. This all allows me to control power to the sidings from my remote.
Ummm; the relays in an AIU are all rated at 10A 250V. How is that not enough to power track all by itself? Or did I miss something?
And look at the size of those traces!